Stockton Torx 9 Piece Tool Set This Stockton 9-Piece Torx Wrench Set is made from high-quality heat-treated Cr-V steel for great hardness and durability, and is finished with black oxide for anti-corrosion and rust prevention. This set includes sizes: T10, T15, T20, T25, T27, T30, T40, T50. Every star key is labelled with specific size on the surface so that you can easily identify the size you want. Features: Heat-treated Cr-V steel construction Labeled folding carry case Includes T10, T15, T20, T25, T27, T30, T40, T50